PURPOSE: To simplfity the handling of a rain shelter under storing, etc. in which shelter a tent is laid on a plurality of support columns that are extendable and retractable, by providing such an arrangement that the wheels arranged on both sides of the shelter are supported on carrier beds so that the folded shelter may be made movable.

CONSTITUTION: Tracks 4 and wheels 5 are provided to the lower parts of support columns 3 attached widthwisely slidably to a plurality of roof frames 2 over which a tent is laid, so that the rain shelter is made extendable and retractable also in the longitudinal direction of a hatch. The wheels 5 of the support columns 3 on both sides of the shelter for cargo handling under a rainy weather condition are set on carrier frames 6 having wheels 9. The carrier beds 6 are connected together by means of connecting shafts 11. With this arrangement in which all frames in a folded condition, for cargo handling under a rainy weather condition, are set on the carrier bed 6, the necessary movement to a hatch opening section, and as well the handling thereof under storing may be simply carried out.